Asia – Mediterranean via Suez
Mediterranean services are the ones most likely to use Suez again (57% in September 2026), which puts the cargo back through Bab el-Mandeb, rated a SUBSTANTIAL threat.
Europe · sea freight from Guangzhou
Guangzhou to Castellon
South China Sea · Malacca Strait · Indian Ocean · Bab-el-Mandeb · Suez Canal · Aegean Sea · Ionian Sea · Sicily Channel
This route runs from the Pearl River Delta via Nansha, then follows a Suez corridor that Mediterranean services are using again more than any other Asia–Europe lane; at the far end is the port of Castellon.
Spain wants the producer on the RII-PYA register, with its number on the invoice. This page sets out 5 points specific to this route, how Anxin handles each one and which documents to prepare.
What we need to start
Route profile
Mediterranean services are the ones most likely to use Suez again (57% in September 2026), which puts the cargo back through Bab el-Mandeb, rated a SUBSTANTIAL threat.
Spain's RII-PYA number on invoices, quarterly data that counts batteries inside equipment, EU importer duties and ADR for the road leg.


Where this route gets difficult
Loading port first, then the sea leg, then Castellon and the Spain market.
Dongguan Customs and Dongguan MSA began sharing dangerous-goods packaging certificate data in September 2026, which they called a first in China, and agreed joint action on concealed and false declarations; Huangpu Customs runs a joint 'lithium batteries going overseas' service against misdeclaration as well. A mismatch between packaging certificate and MSA filing is visible to both.
What Anxin does: We check that the UN number, packaging code and quantities on the packaging certificate are exactly those on the MSA cargo report before either is submitted.
Sea-Intelligence data for September 2026 show 57% of Asia–Mediterranean services routed via the Red Sea, against 27% for North Europe. For Castellon the Suez routing is therefore the likely one, and it runs through Bab el-Mandeb, which the JMIC rated SUBSTANTIAL on 24 September 2026: the Houthis describe their blockade as selective, and they now hold Perim Island in the channel.
What Anxin does: We ask the carrier which routing its service to Castellon uses and name it on the quote, together with any war-risk or emergency surcharge.
Spain's industry ministry runs the RII-PYA battery register, and every battery importer must be registered and declared as a producer there, either through a collective scheme filing for its members or directly online with an electronic signature or Cl@ve. The register number issued has to appear on the producer's invoices.
What Anxin does: We ask the Spanish importer for its RII-PYA number and whether its SCRAP filed the registration, then carry the number on the documents we prepare for Castellon.
Stationary battery energy storage systems placed on the EU market since 18 August 2024 must be safe in normal operation, with technical documentation showing tests against the Annex V parameters, including thermal shock, short-circuit protection, over-discharge and thermal propagation. ESS buyers in Spain increasingly ask for that file before delivery.
What Anxin does: For ESS cabinets and racks bound for Spain we ask the manufacturer to confirm that the Annex V test documentation exists before booking and note the answer in the shipment file.
Annex I of the Battery Regulation caps mercury at 0.0005 %, cadmium at 0.002 % and lead at 0.01 % by weight in portable batteries, and the lead limit has applied since 18 August 2024. Market surveillance in Spain can ask the importer to show that the goods meet these limits.
What Anxin does: We ask the manufacturer for its substance declaration or test report reference and file it with the shipping documents for the Spain importer; we do not test batteries.

Documents & compliance
These documents come from the shipper, the manufacturer and the importer. Anxin checks them against each other; it does not issue test reports, safety data sheets or import certificates.

A document that is present but inconsistent holds a booking as surely as a missing one: the UN number, model name or carton count reads differently in the Guangzhou export filings, the carrier booking and the Spain import papers. We compare all three before confirming space.
Carriers we book with
Our booking panel; availability on this lane and acceptance of the declared UN numbers are confirmed for each booking. It does not mean that a listed carrier runs a direct service on this route. Carrier choice depends on the trade lane, cargo classification and each carrier's dangerous-goods acceptance at booking. The final carrier is confirmed on the booking.
Risk & mitigation
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Mismatch between packaging certificate and MSA filing flagged by shared data | Dongguan / Nansha | Line-by-line check before submission | Anxin with the declarant |
| Security incident near Bab el-Mandeb changes the routing or adds surcharges | Southern Red Sea | Routing and surcharges stated in writing before booking | Carrier, checked by Anxin |
| Importer not registered in the RII-PYA | Importer in Spain | Registration number confirmed before booking | Importer / SCRAP |
| Storage system delivered without Annex V test file | Buyer in Spain | Test documentation confirmed before booking | Manufacturer |
Questions
ADR, which the EU applies to domestic journeys through Directive 2008/68/EC. UN 3480 is class 9, transport category 2, with tunnel restriction code (E).
Often: in September 2026, 57% of Asia–Mediterranean services used the Red Sea routing. Bab el-Mandeb was rated a SUBSTANTIAL threat by the JMIC on 24 September 2026, so we confirm each service's routing before booking.
Both now have a one-box arrangement with Dongguan MSA: Yantian since May 2026 and Nansha since 22 September 2026, so a container inspected at the factory need not be reopened at the terminal unless necessary. The choice then comes down to the carrier's service to your destination and the cut-offs; we compare both when you book.
References
Next step
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We check carrier acceptance for Guangzhou → Castellon before any booking, and ask for missing battery documents first.
All destinations from Guangzhou · Spain ports

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